World War Two artefacts have been found near the Lontski Street Prison museum in Lviv, the Ukrainska Pravda news outlet reports on Wednesday.A load of the German helmets were found in the museum yard during the excavation works.

"These artefacts are important for the museum, as they are found within its territory and are the only evidence of 1941-1944 period and reminding of Nazi crimes," the institution director Ruslan Zabily wrote on his Facebook page.

Also, the burned remains of the Soviet special services papers were also found.

"These Soviet special services burned documents are evidence of the fact that they used to remove traces of their crimes by eliminating proof. Who knows when they were burned down! In 1941 or maybe 1991. The burned sheets still bear the remaining words in Russian, distinguished by the printer ink. These are the documents of some reporting data."

Some of the papers were classified, he adds.

All of the found artefacts will be publicly exposed in the museum, according to his statement.